scholarly journals Focusing properties of the high order vector beam by a high numerical aperture lens

2012 ◽  
Vol 61 (12) ◽  
pp. 124209
Author(s):  
Wang Zheng ◽  
Gao Chun-Qing ◽  
Xin Jing-Tao
Keyword(s):  
Numerical Aperture ◽  
High Order ◽  
High Numerical Aperture ◽  
Vector Beam ◽  
Focusing Properties

FOCUSING PROPERTIES OF HYPERGEOMETRIC GAUSSIAN BEAM THROUGH A HIGH NUMERICAL-APERTURE OBJECTIVE

2015 ◽  
Vol 51 ◽  
pp. 21-26 ◽  
Author(s):  
Ji Peng ◽  
Zhengye Shan ◽  
Yangsheng Yuan ◽  
Zhifeng Cui ◽  
Wei Huang ◽  
...  
Keyword(s):  
Gaussian Beam ◽  
Numerical Aperture ◽  
High Numerical Aperture ◽  
Focusing Properties

scholarly journals Effect of coating-induced polarization aberrations on the focusing properties in high numerical aperture optical system

2015 ◽  
Vol 64 (15) ◽  
pp. 154214
Author(s):  
Li Yang-Hui ◽  
Hao Xiang ◽  
Shi Zhao-Yi ◽  
Shuai Shao-Jie ◽  
Wang Le
Keyword(s):  
Optical System ◽  
Numerical Aperture ◽  
Induced Polarization ◽  
High Numerical Aperture ◽  
Focusing Properties

scholarly journals Formation of an elongated region of energy backflow using ring apertures

2019 ◽  
Vol 43 (2) ◽  
pp. 193-199
Author(s):  
S.S. Stafeev ◽  
V.V. Kotlyar
Keyword(s):  
Energy Flow ◽  
Poynting Vector ◽  
Numerical Aperture ◽  
Second Order ◽  
Depth Of Focus ◽  
Incident Wavelength ◽  
Entrance Pupil ◽  
High Numerical Aperture ◽  
Vector Beam ◽  
Cylindrical Vector Beam

In this paper, we have investigated the focusing of a second-order cylindrical vector beam by using a high numerical aperture (NA) lens limited by a ring aperture using the Richards-Wolf formulae. It was shown that the range of negative on-axis projections of the Poynting vector could be increased by increasing the depth of focus through the use of a ring aperture. It was shown that when focusing light with a lens with NA = 0.95, the use of a ring aperture limiting the entrance pupil angle to 0.9 of maximum, allows the depth of the region of negative on-axis Poynting vector projections to be four times increased, with the region width remaining almost unchanged and varying from 0.357 to 0.352 of the incident wavelength. Notably, the magnitude of the reverse energy flow was found to be larger than the direct one by a factor of 2.5.

Focusing Properties of High-Numerical Aperture Focusing

2010 ◽  
Vol 47 (10) ◽  
pp. 100501
Author(s):  
陈宝算 Chen Baosuan ◽  
蒲继雄 Pu Jixiong
Keyword(s):  
Numerical Aperture ◽  
High Numerical Aperture ◽  
Focusing Properties

Study on High-Numerical-Aperture-Focused Characteristics of Vector Beam Produced by π Phase Plate

2014 ◽  
Vol 34 (12) ◽  
pp. 1226001
Author(s):  
陈国钧 Chen Guojun ◽  
周巧巧 Zhou Qiaoqiao ◽  
纪宪明 Ji Xianming ◽  
印建平 Yin Jianping
Keyword(s):  
Numerical Aperture ◽  
Phase Plate ◽  
High Numerical Aperture ◽  
Vector Beam
Sign in / Sign up

Export Citation Format

Share Document